System Pro Black - indestructible, specialist chairs for professional purposes. The seat of the System Pro Black stools and chairs, made of polyurethane integral foam, is water- and soiling proof and resistant to all other kinds of industrial contamination.Seat width 42 cm, pneumatic lift with seat height regulated 59,5 to 78 cm (caunted with rolls). Octopus pro - the ultimate seat adjustment system - allows for separate height and slope regulation. Durable, hardened, polyamide base, 61 cm diameter. Self-deterring wheels for soft floors and relaxing footrest. Composing the final look of your chair is up to you. Please visit the www.systempro.info and create, using just 9 base elements, 16 various individualized types of chairs that will fit your individual specialized needs!